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介绍了阀门制造及监督检验中遇到的焊接工艺评定、焊工考试及焊后热处理等问题。分析了相关的考试规则,指出了阀门制造中遇到有关的问题时,采用现行压力容器、压力管道规范的局限性,提出了今后在法规修订时应考虑阀门的特殊性并增加相应的条款等建议。
Introduced the valve manufacturing and supervision and inspection encountered in the welding process assessment, welder examination and post-weld heat treatment and other issues. The relevant test rules are analyzed and the problems encountered in the manufacture of valves are pointed out. The limitations of the existing pressure vessels and pressure pipelines are pointed out. In the future, the particularities of valves should be considered in the revision of laws and regulations and the corresponding provisions should be added. Suggest.